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Marat540 [252]
3 years ago
5

Biking at 12 mph, it takes Kristen hour to reach the train station to go to work. Kristen then takes the train to work, and it t

akes another hour for her to get to work when the train travels 24 mph. How far does Kristen travel to work?
Mathematics
1 answer:
wolverine [178]3 years ago
4 0

Answer:

36 mi

Step-by-step explanation:

Remember that distance = rate times time.

Thus, while biking at 12 mph for 1 hr, Kristen covers

(12 mph)(1 hr), or 12 miles;

While riding the train at 24 mph for 1 hr, she covers 24 mi.

Adding these two results together:  The total distance from home to work is 12 mi + 24 mi = 36 mi

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Nataly [62]
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To solve the value of x in the above equation, here are the steps.

1. Subtract 13 on both sides of the equation.

\begin{gathered} 4x^2+13-13=49-13 \\ 4x^2=36 \end{gathered}

2. Divide both sides of the equation by 4.

\begin{gathered} \frac{4x^2}{4}=\frac{36}{4} \\ x^2=9 \end{gathered}

3. Get the square root on both sides of the equation.

\begin{gathered} \sqrt[]{x^2}=\sqrt[]{9} \\ x=\pm3 \end{gathered}

The possible values of x are +3 and -3. The smaller value is -3.

6 0
1 year ago
1a + 2a =<br> answer and i will mark you brainliest
scZoUnD [109]

Answer:

4a

Step-by-step explanation:

a and a =1 + 2+1= 4a

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7 0
3 years ago
The rectangular prism is increased by a factor of three. By what factor does the volume increase?
KiRa [710]

Answer:

27

Step-by-step explanation:

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If you mean to increase EACH dimension by a factor of 3, then we' have

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The volume of the modified prism would be 27 times larger than that of the original prism.

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When creating a similar figure, the original angle measures will be enlarged by a scale factor to create the new shape
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Answer:

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Step-by-step explanation:

i got it right

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3 years ago
Convert 675 milliliters to liters.<br><br> 67,500 L<br> 67.5 L<br> 6.75 L<br> 0.675 L
musickatia [10]
675/1000 = 0.675 L (Answer)

In 675 mL x 1L/1000 mL = 0.675 L
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4 years ago
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